Class: Orchestra::RunList::Builder

Inherits:
Object
  • Object
show all
Defined in:
lib/orchestra/run_list.rb

Defined Under Namespace

Classes: Sorter

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(result, input_names = []) ⇒ Builder

Returns a new instance of Builder.



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# File 'lib/orchestra/run_list.rb', line 61

def initialize result, input_names = []
  @input_names = input_names
  @steps_hash = {}
  @required = Set.new [result]
  @result = result
  freeze
end

Instance Attribute Details

#input_names ⇒ Object (readonly)

Returns the value of attribute input_names.



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# File 'lib/orchestra/run_list.rb', line 59

def input_names
  @input_names
end

Instance Method Details

#[]=(name, step) ⇒ Object 



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# File 'lib/orchestra/run_list.rb', line 75

def []= name, step
  @steps_hash[name] = step
end

#build ⇒ Object 



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# File 'lib/orchestra/run_list.rb', line 87

def build
  sort!
  prune!
  RunList.new @steps_hash, @result
end

#merge!(steps) ⇒ Object 



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# File 'lib/orchestra/run_list.rb', line 69

def merge! steps
  steps.each do |name, step|
    self[name] = step
  end
end

#prune! ⇒ Object 



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# File 'lib/orchestra/run_list.rb', line 98

def prune!
  steps.reverse_each.with_object [] do |step, removed|
    removed.<< remove step and next unless required? step
    require step
  end
end

#remove(step) ⇒ Object 



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# File 'lib/orchestra/run_list.rb', line 105

def remove step
  @steps_hash.reject! do |_, n| n == step end
  step
end

#require(step) ⇒ Object 



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# File 'lib/orchestra/run_list.rb', line 110

def require step
  supplied_by_input = input_names.method :include?
  required_deps = step.required_dependencies.reject &supplied_by_input
  @required.merge required_deps
  required = @required.method :include?
  @required.merge step.optional_dependencies.reject &required
  true
end

#required?(step) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/orchestra/run_list.rb', line 119

def required? step
  required = @required.method :include?
  step.provisions.any? &required
end

#sort! ⇒ Object 



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# File 'lib/orchestra/run_list.rb', line 93

def sort!
  sorter = Sorter.new @steps_hash
  sorter.sort!
end

#step_names ⇒ Object 



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# File 'lib/orchestra/run_list.rb', line 79

def step_names
  @steps_hash.keys
end

#steps ⇒ Object 



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# File 'lib/orchestra/run_list.rb', line 83

def steps
  @steps_hash.values
end